Masraige – of Magh Slecht in co. Cavan. This general area ruled by the Ui Briun?? septs of Mac Tighearnáin
(MacTiernan, MacKeirnan) of Tellach Donnchadha (baorny of Tullyhunco); and the Mag Shamhradhain (MacGovern or
Magauran) of Teallach Eochaidh (barony of Tullyhaw) in northwest Co. Cavan.

Partraige - west and north of Lough Mask. Septs said to originate in this area include Ó Cadhain (O'Coyne),
Ó Dorchaidhe (O'Dorcey or Darcy), Ó Goirmghialla (O'Gormley), Ó Ciaragain (O'Kerrigan) and Ó Tighearnaigh (O'Tierney).

Grecraige - an ancient group said to inhabit western portions of co. Sligo

Uí Máine - consisting of much of east Galway and south Roscommon. O'Kelly, O'Donnellan and O'Madden,
Ó Concheanainn (O'Concannon), lords of Uí Diarmada near Kilkerrin, Co. Galway; Ó Cobhthaigh (O'Coffey), a branch
of the O'Maddens; Ó Neachtain (O'Naghten), chiefs near Loughrea and later of the Fews (Athlone); Ó Maolalaidh
(O'Mulally or Lally), of the same stock as the O'Naghtens; Mac Eochaidh (MacKeogh), lords of Magh Finn (Moyfinn,
Athlone); Ó Roduibh (Mac Geraghty), one of the four royal chiefs under O'Conor; Ó Fathaigh (O'Fahy), whose territory
came to be known Pobal Mhuintir ui Fhathaigh; Ó Dúnadhaigh (O'Downey), chiefs of Sil Anmchada prior to the O'Maddens.

Some of these tribes are noted in the historical period, and include the population groups known as the Grecraige, Tradraige, Garbraige and Glasraige, among others. Some of these are referred to as remnants of the original Firbolg, Damnonian, or other ancient population groups.